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parent faces

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This commit is contained in:
Joachim Schoeberl 2021-02-17 23:32:15 +01:00
parent 87e472b6fc
commit e9e3d52b45
5 changed files with 84 additions and 38 deletions
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2
libsrc/include/nginterface_v2.hpp
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@ -345,6 +345,8 @@ namespace netgen
void Curve (int order);
int GetCurveOrder ();
void EnableTable (string name, bool set);
void Refine (NG_REFINEMENT_TYPE reftype,
void (*taskmanager)(function<void(int,int)>) = &DummyTaskManager2,
void (*tracer)(string, bool) = &DummyTracer2);

7
libsrc/interface/nginterface_v2.cpp
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@ -1137,6 +1137,13 @@ namespace netgen
return mesh->GetCurvedElements().GetOrder();
}
void Ngx_Mesh :: EnableTable (string name, bool set)
{
mesh->GetTopology().EnableTable (name, set);
}
template <>
DLL_HEADER void Ngx_Mesh :: SetRefinementFlag<2> (size_t elnr, bool flag)
{

9
libsrc/meshing/python_mesh.cpp
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@ -1129,15 +1129,20 @@ project_boundaries : Optional[str] = None
.def ("EnableTable", [] (Mesh & self, string name, bool set)
{
const_cast<MeshTopology&>(self.GetTopology()).EnableTable(name, set);
/*
if (name == "edges")
const_cast<MeshTopology&>(self.GetTopology()).SetBuildEdges(set);
else if (name == "faces")
const_cast<MeshTopology&>(self.GetTopology()).SetBuildFaces(set);
else if (name == "parentedges")
const_cast<MeshTopology&>(self.GetTopology()).SetBuildHierarchy(set);
const_cast<MeshTopology&>(self.GetTopology()).SetBuildParentEdges(set);
else if (name == "parentfaces")
const_cast<MeshTopology&>(self.GetTopology()).SetBuildParentFaces(set);
else
throw Exception ("noting known about table "+name +"\n"
"knwon are 'edges', 'faces', 'parentedges'");
"knwon are 'edges', 'faces', 'parentedges', 'parentfaces'");
*/
},
py::arg("name"), py::arg("set")=true)

59
libsrc/meshing/topology.cpp
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@ -55,6 +55,24 @@ namespace netgen
bool MeshTopology :: NeedsUpdate() const
{ return (timestamp <= mesh->GetTimeStamp()); }
void MeshTopology :: EnableTable (string name, bool set)
{
if (name == "edges")
SetBuildEdges(set);
else if (name == "faces")
SetBuildFaces(set);
else if (name == "parentedges")
SetBuildParentEdges(set);
else if (name == "parentfaces")
SetBuildParentFaces(set);
else
throw Exception ("noting known about table "+name +"\n"
"knwon are 'edges', 'faces', 'parentedges', 'parentfaces'");
}
template <typename FUNC>
void LoopOverEdges (const Mesh & mesh, MeshTopology & top, PointIndex v,
FUNC func)
@ -679,7 +697,7 @@ namespace netgen
} );
if (build_hierarchy)
if (build_parent_edges)
{
static Timer t("build_hierarchy"); RegionTimer reg(t);
cnt = 0;
@ -1438,9 +1456,11 @@ namespace netgen
// NgProfiler::StopTimer (timer2c);
if (build_hierarchy)
if (build_parent_faces)
{
// tets only
cout << "build face hierarchy:" << endl;
cout << "f2v = " << face2vert << endl;
ngcore::ClosedHashTable<INT<3>, int> v2f(nv);
for (auto i : Range(face2vert))
@ -1459,11 +1479,16 @@ namespace netgen
for (auto i : Range(nfa))
{
INT<3,PointIndex> f3(face2vert[i][0], face2vert[i][1], face2vert[i][2]);
PointIndex vmax = Max(f3);
if (vmax >= mesh->mlbetweennodes.Size()+PointIndex::BASE)
continue;
auto parents = mesh->mlbetweennodes[vmax];
// find a vertex, such that one of its parent is a trig vertex
for (int k = 0; k < 3; k++)
{
PointIndex v3 = f3[k];
if (v3 >= mesh->mlbetweennodes.Size()+PointIndex::BASE)
continue;
auto parents = mesh->mlbetweennodes[v3];
// is face part of one parent face (boundary-face) ?
for (int j = 0; j < 2; j++)
@ -1474,23 +1499,29 @@ namespace netgen
PointIndex v1 = parents[1-j];
// the third one, on the tip
PointIndex v2 = f3[0]+f3[1]+f3[2] - v0 - v1;
int classnr = 0;
if (v0 > v1) { Swap (v0, v1); classnr += 1; }
if (v1 > v2) { Swap (v1, v2); classnr += 2; }
if (v0 > v1) { Swap (v0, v1); classnr += 4; }
PointIndex v2 = f3[0]+f3[1]+f3[2] - v0 - v3;
INT<3> parentverts(v0, v1, v2);
parentverts.Sort();
int classnr = 0;
if (v2 > v3) { Swap (v2, v3); classnr += 1; }
if (v0 > v1) { Swap (v0, v1); classnr += 2; }
if (v1 > v2) { Swap (v1, v2); classnr += 4; }
if (v0 > v1) { Swap (v0, v1); classnr += 8; }
if (v2f.Used(parentverts))
{
int pafacenr = v2f[parentverts];
cout << "parent-face = " << pafacenr << endl;
parent_faces[i] = { classnr, { pafacenr, -1, -1, -1 } };
}
}
}
}
}
}
}

17
libsrc/meshing/topology.hpp
View File

@ -45,7 +45,8 @@ class MeshTopology
const Mesh * mesh;
bool buildedges;
bool buildfaces;
bool build_hierarchy = false; // may be changed to default = false
bool build_parent_edges = false; // may be changed to default = false
bool build_parent_faces = false; // may be changed to default = false
NgArray<INDEX_2> edge2vert;
NgArray<INDEX_4> face2vert;
@ -80,14 +81,14 @@ public:
{ buildedges = be; }
void SetBuildFaces (bool bf)
{ buildfaces = bf; }
void SetBuildHierarchy (bool bh) { build_hierarchy = bh; }
void SetBuildParentEdges (bool bh) { build_parent_edges = bh; }
void SetBuildParentFaces (bool bh) { build_parent_faces = bh; }
bool HasEdges () const
{ return buildedges; }
bool HasFaces () const
{ return buildfaces; }
bool HasParentEdges () const
{ return build_hierarchy; }
void EnableTable (string name, bool set);
bool HasEdges () const { return buildedges; }
bool HasFaces () const { return buildfaces; }
bool HasParentEdges () const { return build_parent_edges; }
void Update(NgTaskManager tm = &DummyTaskManager, NgTracer tracer = &DummyTracer);
bool NeedsUpdate() const;